Computer Network Tutorial

Introduction of Computer Network Types of Computer Network Network Topology Computer Networking Architecture Transmission Modes (Data Flow) Basic Networking Devices Integrate Services Digital Network (ISDN)

Model

OSI Model TCP/IP Model

Physical Layer

Digital Transmission Analog Transmission Transmission Media Switching

Data Link Layer

Error detection and Error correction Data Link Control Multiple Access Aloha

Network Layer

Network Layer - Logical Address Address Mapping Unicast Routing Protocol

Transport Layer

Process to Process Delivery User Datagram Protocol Transmission Control Protocol Stream Control Transmission Protocol Session Layer and Presentation Layer

Application Layer

Domain Name System Application Protocol E-mail Cryptography

Misc

Classes of Routing Protocols Classification of Routing Algorithms Controlled Access Protocols in Computer Networks Differences between IPv4 and IPv6 Fixed and Flooding Routing Algorithms Advantages and Disadvantages of Fibre Optics Cable APIPA Difference between Active and Passive FTP Fiber Optics and its Types Method of Joining and Fusion of Fiber Optic Cable Define Framing in Computer Network Disadvantages of Computer Network Mesh Topology Diagram in Computer Network Ring Topology in Computer Network Star Topology in Computer Networks 4G Mobile Communication Technology Advantages and Disadvantages of LAN Advantages and Disadvantages of MAN Advantages and Disadvantages of WAN Application Layer in OSI Model Cyclic Redundancy Check Example Data link layer in OSI model Difference between Transport and Network Layer Hamming Code Example Network Layer in OSI Model Session Layer in OSI Model Transport Layer in OSI Model Two Port Network in Computer Networks Uses of Computer Networks What is Computer Network What is Framing in a Computer Network Advantages and Disadvantages of Bus Topology Difference between Star Topology and Bus Topology Subnetting in Computer Network Subnetting Questions and Answers What is Bus Topology What is Network Topology and Types in Computer Networks Access Control in Networking Basic Characteristics of Computer Network Benefits of SOCKS5 Proxy in Computer Networks Computer Network viva Questions Difference between BOOTP and RARP Difference Between Network Topologies and Network Protocols Difference between NFC and RFID Difference Between Point-to-Point Link and star Topology Network Differences Between MSS and MTU Differences Between Trunk Port and Access Port Different Modes of Communication in Computer Networks MIME Protocol in Computer Networks Modes of Communication in Computer Networks Network Attack in Computer Network Port Address in Networking Simplest Protocol in Computer Network Sliding Window Protocol in Computer Network Stop And Wait Protocol in Computer Networks TCP 3-Way Handshake Process in Computer Networks What is a Proxy Server What is APPN What is ICMP Protocol What is Point-to-Point Protocol What is Port Address in Networking What is the HDLC Protocol What is VRRP Protocol Difference Between Analog and Digital Signals Difference Between Hub and Repeater Difference between Repeater and Switch Difference Between Transparent Bridge and Source Routing Bridge Source Routing Bridge in Computer Networks Transparent Bridge in Computer Networks Transport Protocol in Computer Networks Types of CSMA in Computer Networks What is Wired and Wireless Networking Network Security in Computer Network Disadvantages of Extranet Difference Between TELNET and FTP Define Protocol in Computer Networks Guided Transmission Media in Computer Network What is a Gateway in a Computer Network IGMP in Computer Networks LAN Protocols in Computer Networks MAN Meaning in Computer Modulation Techniques in Computer Networks Switching in DCN TCP/IP Applications What is IGMP? What is Modem in Networking What is Non-Persistent CSMA Difference between Cell Splitting and Cell Sectoring Forouzen Computer Network Open Loop and Closed Loop Congestion Control Types of Cluster Computing WAP-Wireless Access Point What are the elements of the Transport Protocol Difference between Gateway and Switch Flow Control in Data Link Layer Body Area Network Flooding in Computer Network Token Ring in Computer Networks VoIP in Computer Networks What is Infrared Transmission Congestion Control Techniques Forward Error Correction (FEC) Switching Techniques What is Telnet in Computer Network What are the Types of IPv4 Addresses IEEE 802.6 (DQDB) IEEE 802.15.4 Technology What is HDLC (High-level Data Link Control)? What is SMS Hubbing in Telecom? Circuit Switching in Computer Networks Communication Satellites in Computer Networks Features of HTTP Protocol IMAP4 (Internet Message Access Protocol) Internet Services How to Set up a Wireless Router Internetwork Routing in Computer Networks Distributed Computing System Features of GSM The 802.11 MAC Sublayer Protocol What is IEEE 802.3? What are Hubs and Switches in Computer Networks? What is Modem in a Computer Network? What is multicasting in Computer Networks? GSM -The Mobile Station What is Network Server? Slotted Aloha in Computer Network What is Ethernet in Computer Networks What is Arpanet? Radio Access Network (RAN) TCP 3-Way Handshake Process PING SWEEP (ICMP SWEEP) Print Server Private IP Address Security Services in Computer Networks Protocol Data Unit (PDU) CSMA with Collision Avoidance (CSMA/CA) What is Gateway in Computer Network? Advantages of Networking Data Link Layer Design Issues DHCP in Computer Networks Internet Security Association and Key Management Protocol (ISAKMP) What is Switch Hub? Telnet Full form in Networking Multimedia Systems Quality of Service in Computer Networks What is Carrier Sense Multiple Access (CSMA)? What is Circuit Switching What is Duplex Network? What is Web Protocol Network LAN Technologies Classes in Computer Network Low-Density Parity Check (LDPC) Wireless Internet Service Providers(Wisps) What is Handshaking? Cache Server What Is WSN Network? Check Sum Error Detection Linear Bus Topology Functions of the Transport Layer Infrared Transmission in Computer Networks Digital Signal in Computer Network Digital Data Transmission in Computer Networks Define Checksum with Example Computer Network Security Requirements Brust Errors in Computer Network Back Side Bus (BSB) 2-Dimension Parity Check in Computer Network Router and Brouter Microwave Transmission in Computer Networks Magnetic Media in Computer Network A One-Bit Sliding Window Protocol CDMA-Near-Far Problem Reference Models in Computer Networks Uni-cast, Broadcast, and Multicast in Computer Networks Uses Of Bridges in Computer Networks What are Gateways in Computer Network? How to Set Up a Home Network – A 7-Step Guide GSM in Computer Networks Multicast Routing Protocols in Computer Networks Network Components Types of Ethernet in Computer Networks BGP vs.EIGRP-What's the difference? Green Cloud Computing and its Strategies Packet Switching Router in Computer Network Advantages and Disadvantages of Routers ATM Network Automatic Repeat ReQuest (ARQ) Static Routing Algorithms in Computer Network TDMA – Technology Data Link Layer services provided to the Network Layer Transmission Impairments in Computer Networks Types of Modems What are Elementary Data Link Layer Protocols What is an Ad-hoc Network? What is the IEEE 802.11 Wireless LAN Standards? What Is Tunneling in Computer Networks? What is Twisted Pair Cable Advantages of Unguided Media Ethernet Topology in Computer Network Optical Fiber Modes and Configurations Optical Sources in Optical Fiber Communication 4 Layers of TCP/IP Hierarchical Routing Algorithm in Computer Networks Meaning of Data Communication Metropolitan Area Network Responsibilities of Transport Layer The Functions of Hub in Networking Tree Topology in Computer Network Types of Connections in Computer Network Authentication in Computer Network Buffering in Computer Networks MAC Protocol and its Classification Difference between Circuit Switching and Packet Switching Difference between Session and Cookies Broadcasting in Computer Networks CDMA in Computer Networks CDMA-Technology Components of Computer Network CRC in Data Communication CSMA-CA Protocol in Computer Network Difference between LAN and VLAN DIFFERENCE BETWEEN PHYSICAL AND LOGICAL TOPOLOGY Difference between TDM and FDM Differences Between URL and IP Address Differentiate between Synchronous TDM and Asynchronous TDM in Computer Network Diffеrеntiate Bеtwееn Datagram Approach and Virtual Circuit in Computer Network FDDI in Computer Network Functions of Bridge IEEE 802.11 in Computer Networks Internetworking in Computer Networks MAC in Data Link Layer Mac Sub Layer in Computer Networks MAN Meaning in Computer Radio Wave Transmission Single Sign-On (SSO) Token Passing in Computer Network Types of Data Transmission Types of Transmission Media in Computer Networks Advantagеs and Disadvantagеs of Li-Fi Benefits of Client Server Computing Bus and its Types Characteristics of Analog Signals Characteristics of NOS Choke Packet in Congestion Control Congestion Control Policy CSMA/CA in Computer Network Data Communication and Transmission Techniques Data Compression in Computer Networks Diffеrеncе bеtwееn SSH and Tеlnеt Diffеrеncе bеtwееn Static IP Addrеss and Dynamic IP Addrеssa Fiber Distributed Data Interface Network Time Protocol(NTP) Routing in Adhoc Networks Working of DNS Time Division Multiplexing (TDM) Types of Packet Switching Types of Protocols Types of Transmission Technology Use of Bluetooth in Computer Networks What is BBS? What is Code Correction? IEEE 802.11 Wireless LAN What is Stateless Protocol? Advantages of Networking in Computers DHCP Protocol in Computer Networks Difference between UTP and STP Cable Explain FTP in Computer Network Explain Hierarchical Model Explain HTTP in Computer Network Explain Nested Structure with Example Open Systems Interconnection Model Parallel Database System SMTP in Computer Network Space Division Switching Transmission Control Protocol (TCP) Types of IP Address Types of Routing in Computer Networks What is Duplex Transmission Data Link Layer Protocols Network Layer Protocols Session Layer Protocols

Benefits of Client Server Computing

A client-server network is an internet network where one main computer serves as a server and controls many other computers known as clients. By connecting to the server, clients can access shared files and data stored on the serving machine. In addition, client-server networks are conceptually comparable to peer-to-peer networks, except that only the server may start a transaction.

The client-server model explains how a server grants one or more clients access to resources and services. Examples of servers include mail servers, web servers, and file servers. Client devices have access to the resources on each server, including desktops, laptops, tablets, and mobile devices. One server can provide resources to numerous clients simultaneously because clients and servers frequently have a one-to-many connection.

A server can accept or deny a client's request for a connection when the client makes the request. If the connection is approved, the server creates and maintains a connection with the client that is particular to the protocol. For instance, an email client could require a program on the mail server to ask for authentication data, such as the email address and password. If the login information matches an existing account on the mail server, the server will send the email to the intended recipient.

In online multiplayer games, the client-server architecture is also utilized. For example, the Battle.net service from Blizzard offers online gaming for its other titles and World of Warcraft, StarCraft, and Overwatch. When users run a Blizzard program, the gaming client automatically establishes a connection to a Battle.net server. After signing up for Battle.net, users may see who else is online, interact with other users, and play games with or against them.

Even though Internet servers may connect several clients simultaneously, each physical system can only handle so much traffic. Because of this, well-known online services spread their users across several physical servers using distributed computing. Most of the time, it makes no difference which computer users connect to because all servers provide the same service.

Although a client-server network is most frequently utilized across numerous sites, it may be constructed on a single computer system. Thanks to this technology, several computers or people may now converse and exchange information. As businesses expand and individuals collaborate across great distances, a client-server paradigm allows users to access a common or shared database or application. The same thing happens when people use the internet to check their bank accounts or pay their bills. Users submit their requests to the bank's server, which sends the data to the users.

The centralized client-server approach's centralized nature makes it easier to protect data with access restrictions imposed by security regulations, which is a significant advantage. Additionally, it is irrelevant if the clients and server use the same operating system because client-server protocols share data independent of the platform.

The client-server system has a significant drawback: if too many clients request data from the server at once, the server may get overwhelmed. A denial of service might occur as a result of excessive requests in addition to causing network congestion.

What is a Client-Server Network?

  • Clients access resources and services from a dedicated host over a local area network (LAN) or wide-area network (WAN), such as the Internet, in a client-server network. When a client request arrives, a dedicated server known as a daemon opens a network connection and keeps it open until the client request is fulfilled.
  • The two forms of network traffic are client-to-server (north-south traffic) and server-to-server (east-west traffic). Popular network services include the World Wide Web, printing, data sharing, and email. Centralizing programs and data is one of the main benefits of client-server networks.
  • Data transfer is facilitated and protected by a client-server network. Businesses seeking faster and more secure data transport may consider using the network.

What is the Process of a Client-Server Network?

  • A dedicated computer is used in client-server networks to store data, manage resources, and regulate user access (server). By serving as a hub, the server links every other machine in the network. A client is a device that connects to the server. Client-server networks, which include a centralized server for network management, are typically favoured over peer-to-peer networks.
  • The two forms of network traffic are client-to-server (north-south traffic) and server-to-server (east-west traffic). Popular network services include the World Wide Web, printing, data sharing, and e-mail. Centralizing programs and data is one of the main benefits of client-server networks.
  • Data transfer is facilitated and protected by a client-server network. Businesses seeking faster and more secure data transport may consider using the network.
  • A PC or other mobile device with network apps is frequently the hardware used by clients. The person on the other side of the computer requests the server across the internet. A huge quantity of data is stored in files, databases, and programs on the server, or data centre, which is located server-side.
  • The client simultaneously transmits requests to the server, providing updates and pertinent answers to the queries. This is how the client-server network works.
  • Network traffic may be heavy in client-server networks since many clients and servers exist. The server cuts the client off from the network to conserve bandwidth when the procedure is complete. As a result, the speed at which results are sent depends on the bandwidth efficiency of the client and server. The client-server architecture may be utilized online and in a local area network (LAN), such as a business or organization.
  • Clients frequently use the TCP/IP protocol stack to connect to servers. As a connection-oriented protocol, TCP establishes and maintains a connection until the application programs have finished exchanging messages on both ends. It chooses how to partition application data into network packets for transmission transmits and receives packets from the network layer, manages flow control, retransmits dropped or garbled packets, and acknowledges all packets that arrive. In the Open Systems Interconnection (OSI) communication architecture, Layer 4's Transport Layer and Layer 5's Session Layer both have components that TCP uses.

Benefits of a Client-Server Network

The client-server architecture design provides the following benefits:

  • Centralization: Data security, user permission, and authentication management are significantly easier when all necessary data is stored on a single server. Any problem that develops throughout the whole network may be fixed in a single place.
  • Scalability: A client-server network may grow with minimal downtime by adding more network segments, servers, and PCs. Scalable client-server networks are available. The user can increase the number of resources, such as clients and servers, as necessary. As a result, expanding the server's capacity won't cause any problems. Since the server is centralized, even if the size increases, there are no issues with access to network resources. Therefore, just a few staff members are required for the setups.
  • Simple management: Effective data access does not need proximity between clients and the server. Handling them is quite easy because all of the files are saved on the same server.  Client-server networks provide the best administration for monitoring and locating records of essential files.
  • Accessibility: Because each node in a client-server system is independent and only requests data from the server, it is easy to update, replace, or relocate them.
  • Data Security: A client-server network's centralized design ensures the data is appropriately protected. Access controls can be utilized to enforce it and guarantee that only authorized people are granted access. One such method is imposing credentials like a login and password. Furthermore, recovering the files from a single backup would be easy if the data were lost.

Drawbacks of a Client-Server Network

There are several drawbacks to client-server networks:

  • Network traffic congestion: The fundamental drawback of a client-server architecture is the potential for system overload caused by a lack of resources to support all of the clients. The connection can be lost or slowed down if too many distinct clients attempt to connect to the shared network simultaneously. Any website or customer in the globe won't be able to access the information if the internet connection is unavailable. If large firms are unable to obtain crucial information, they may be in danger.
  • High Cost: In client-server networks, the setup and upkeep of the server often cost more than the network's operation. Because of their power, the networks could be expensive to purchase. As a result, not all users will be able to afford them.
  • Robustness: The entire network will be disrupted if the primary server encounters failure or interference. As a result of its centralization, client-server networks could be stronger in terms of resilience.
  • Maintenance Challenge: The servers will operate continually after installation, necessitating the required maintenance. Any errors must be corrected immediately and without additional delay. As a result, the server has to be managed by an experienced network manager.
  • Non-acquirable Resources: Not all of the server's resources are accessible for purchase. For instance, you cannot immediately print a web-based document or alter any data on the client's hard drive.